DÏxcK -1.

g‡Wj-A
(K) †Kvqv›Uvg msL¨v wK? / AiweUvj Kx?
(L) 2d, 3f, 4p AiweUv‡ji m¤¢ve¨Zv hvPvB Ki| / Fe2 I Fe3 Avq‡bi g‡a¨ †KvbwU AwaK w¯’wZkxj
Ges †Kb?
(M) DÏxc‡Ki A g‡W‡ji ewn¯’ ¯Í‡ii ℓ I m Gi gvb wnmve K‡i AiweUvj msL¨v Ges †gvU B‡jKUªb
msL¨v wbY©q Ki|
(N) DÏxc‡K D‡jøwLZ wP‡Î cÖ`wk©Z B‡jKUª‡bi avcvšÍ‡ii mgq m„ó eY©vjxi Zi½‰`N©¨, eY© , kw³ wbY©q
Ki|
DÏxcK -2 (i)

(ii) Mg (12)  1s2 2s2 2p6 3s2

(K) AvDdevD bxwZ wK? /cwji eR©b bxwZ wK?
(L) Rvj UvKv ev Rvj cvm‡cvU© kbv³Ki‡Y UV iwk¥i e¨envi Kiv nq †Kb? / He+ Gi Rb¨ ‡evi
cigvYy g‡Wj e¨vL¨v Ki‡Z cv‡i †Kb?|
(M) DÏxc‡K (ii) G DwjøwLZ 3q &Ges 6ô B‡jKUªb `ywUi †ÿ‡Î cwji eR©b bxwZi cÖ‡qvM †`LvI|
(N) DÏxcK (i) G wmwiR `ywUi †KvbwU `„k¨gvb eY©vwj cÖ`k©b K‡i MvwYwZKfv‡e g~j¨vqb Ki|

3| i) H Gi cvigvYweK eY©vjxi evgvi wmwiR |

ii) A  [Ar] 3d24s2
(K) `ªve¨Zv Mybdj Kx?/ mgAvqb cÖfve wK?
(L) wkLv cixÿvq Mvp HCl e¨envi Kiv nq †Kb?
(M) DÏxcK ii) Gi d AiweUv‡ji B‡jKUªb cwji eR©bbxwZ †g‡b P‡j wKbv e¨vL¨v Ki|
(N) DÏxcK i) Gi evgvi wmwi‡Ri 1wU †iLvi Zi½ ˆ`N¨© 486 nm n‡j B‡jKUªbwU †Kvb Kÿc_ †_‡K
¯’vbvšÍwiZ n‡q‡Q MvwYwZKfv‡e we‡kølY Ki|
 4|

GLv‡b, AB2 Gi `ªve¨Zvi ¸Ydj 4 10  8

m¤ú„³ `ªeY -1 , 50ºC ZvcgvÎvq `ªve¨Zv 60 , 25C ZvcgvÎvq `ªve¨Zv 40
(K) `ªve¨Zv Kx?
(L) 25° †m. ZvcgvÎvq M(OH)3Gi `ªve¨Zv ¸Ydj 2.5  10-39 ej‡Z wK eyS?
(M) m¤ú„³ `ªeY -1 ‡K kxZj Ki‡j KZUzKz `ªe †KjvwmZ n‡e?
(N) m¤ú„³ `ªeY-2 Gi g‡a¨ 0.1M XB `ªeY †hvM Ki‡j m¤ú„³ `ªeY-2 Gi `ªve¨Zv cwieZ©b nevi
m¤¢ve¨Zv MvwYwZKfv‡e hvPvB K‡iv|
5| i) H Gi cvigvYweK eY©vjxi evgvi wmwiR |
ii)
60 mL 0.02 M A3B2 40 mL 0.04 M XY2
m¤ú„³ `ªeY m¤ú„³ `ªeY
cvÎ -1 cvÎ-2

25°C AY3 Gi Ksp = 3.74  10 24

(K) û‡Ûi bxwZ wK?
(L) `ªe‡Y NH4+ / Cl – / SO42– Avqb wKfv‡e mbv³ Ki‡e? / Kcvi / †µvwgqvg cigvYyi B‡jKUªb
web¨v‡m AvDdevD bxwZi e¨wZµg N‡U †Kb?
(M) DÏxcK i) Abymv‡i m„&ó †iLv eY©vjxi `xN©Zg Zi½‰`N¨© wbY©q Ki|
(N) DÏxc‡Ki wgkª‡Y ‡Kvb Aa:wÿß n‡e wKbv? MvwYwZKfv‡e we‡kølY Ki|
6.
†kÖwY 14 15 16
ch©vq
2q P Q R
3q D

(K) †cvjvivqb Kx? / nvB‡Wªv‡Rb eÜb Kv‡K e‡j?

(L) ‡d¬vwib me©v‡cÿv Zwor FYvZ¥K †gŠj-e¨vL¨v Ki|
(M) R I D `¦viv MwVZ nvBWªvBW †hŠ‡Mi †fŠZ ag© wfbœ †Kb ? we‡kølY Ki |
(N) DÏxc‡Ki Q Ges R ‡gŠ‡ji nvBWªvBW †hŠ‡Mi msKiY GKB n‡jI G‡`i AvK…wZ wfbœ - we‡kølY
Ki |
 DÏxcK- 7|
†gŠj ewn¯Í‡ii B‡jKUªb
web¨vm
X ns2 np5
Y (n -1)s2 (n -1)p5
P nd10(n +1) s1
Z nd10(n +1) s2
GLv‡b X, Y, P I Z cÖZxKx †gŠj wn‡m‡e e¨eüZ n‡q‡Q| GLv‡b n = 3
(K) B‡jKUªb Avmw³ wK?
(L) MgCl2 I AlCl3 Gi g‡a¨ †KvbwU AwaK mg‡hvRx Ges †Kb?
(M) DÏxc‡Ki X Ges Y Gi g‡a¨ †KvbwUi B‡jKUªb Avmw³i gvb †ewk n‡e? e¨vL¨v K‡iv|
(N) DÏxc‡Ki P2+ iwOb †hŠM MVb Ki‡jI Z2+ iwOb †hŠM MVb K‡i bv e¨vL¨v K‡iv|
8.
†kÖwY 1 15 17
ch©vq
1g X
2q A Y
3q Z

(K) wmMgv I cvB eÜb ej‡Z wK eyS? / msKiY wK?

(L) ¯‹¨vwÛqvg I wRsK‡K Ae¯’všÍi avZz ejv hvq bv ‡Kb
(M) DÏxc‡Ki Y Ges Z Gi g‡a¨ †KvbwUi B‡jKUªb Avmw³i gvb †ewk n‡e? e¨vL¨v Ki|
(N) DÏxc‡Ki AX3 Ges AX4+ Gi ‡K›`ªxq cigvYyi msKiY GKB n‡jI G‡`i AvK…wZ wfbœ - we‡kølY
Ki |
9. †gŠj B‡jKUªb web¨vm
X 3s1
Y 3d10 4s1
Z 3s2 3p5
[X, Y I Z †Kv‡bv †gŠ‡ji cªZxK bq]
(K) ‡cvjvwiwU Kx ?/ wjM¨vÛ wK?
(L) HF †cvjvi e¨vL¨v Ki| / BeCl2 AYyi MVb mij ˆiwLK †Kb?
(M) DÏxc‡Ki XZ †hŠ‡Mi MjbvsK YZ †hŠ‡Mi MjbvsK A‡cÿv †ekx e¨vL¨v Ki|
(N) DÏxc‡Ki Y2+ iwOb †hŠM MVb Ki‡jI Y+ iwOb †hŠM MVb K‡i bv we‡kølY Ki|
DÏxcK- 10.
ch©vq (A) 6 M 7 Q
ch©vq (B) 11 X 12 Y 13 Z 14 A 15W 16 D 17 E 18 G
M,X,Y,Z,A,W,D,E,G cÖZxwK A‡_© e¨eüZ †gŠ‡ji cÖK…Z cÖwZK bq|
(K) Zwor FYvZ¥KZv wK?
(L) AgF cvwb‡Z `ªexf~Z nq wKšÍy AgI cvwb‡Z A`ªeYxq e¨vL¨v Ki|
(M) DÏxc‡Ki Av‡jv‡K ME4 Av`©ª we‡køwlZ nq bv wKšyÍ AE4 Av`©ª we‡køwlZ nq-e¨vL¨v Ki|
N) DÏxc‡Ki Av‡jv‡K B ch©v‡qi ‡gŠjmg~‡ni evg †_‡K Wv‡b AvqbxKiY kw³i gv‡bi cwieZ©b
e¨wZµgmn Ñwe‡kølY Ki|

DÏxcK - 10|
30C
0.8 g 0.7 g
75 cm (Hg) 150 kPa
500mL 300cm3
A - M¨vm B - M¨vm

(K) cigk~b¨ ZvcgvÎv wK? / AvswkK Pvc Kx ? / eM©g~j Mo eM©‡eM Kx ?/ †gvj fMœvsk wK?
(L) S.I / C.G.S GK‡K R Gi gvb wbY©q Ki|/ -2730C †K cigk~b¨ ZvcgvÎv ejv nq †Kb?
M) (1) DÏxc‡K B cv‡Î M¨vmwUi AYyi msL¨v wbY©q Ki| (2) DÏxc‡Ki A I B M¨vmmg~‡ni AvswkK
Pvc, †gvU Pvc I ‡gvj fMœvsk wbY©q Ki|
N) (1) DÏxc‡Ki Pvwe †Lvjv Ae¯’vq 40C ZvcgvÎvq M¨vm wgkª‡Yi †gvU Pvc wbY©q Ki|
(2) DÏxc‡Ki A I B M¨vm؇qi g‡a¨ †KvbwUi e¨vcb nvi †ewk n‡e? we‡kølY Ki|
DÏxcK - 11:
C
B
A
PV

(L. atm)
P(atm)

B M¨vmwU cUvwkqvg †K¬v‡i‡Ui Zvcxq we‡qvR‡b Drcbœ nq| Ges C M¨vmwUi Pzbvcv_‡ii Zvcxq we‡qvR‡b
Drcbœ nq|
(K) e‡q‡ji m~Î wjL/ Mªvnv‡gi e¨vcb m~Î wjL? / mgPvcxq †iLv Kx? / mgZvcxq †iLv Kx?
(L) AlCl 3 jyBm GwmW ‡Kb?/ NH3 jyBm ÿviK ‡Kb?/
96g Aw•‡Rb M¨v‡mi Rb¨ f¨vÛvi Iqvjm mgxKiYwU wjL|
M) (1) STP †Z DÏxc‡Ki C M¨vmwUi RMS †eM wbY©q Ki|
(2) DÏxc‡Ki B M¨vmwUi NbZ¡ STP- †Z 1.25 g/L n‡j Gi RMS †eM KZ?
(3) 27C ZvcgvÎvq DÏxc‡Ki 5.5g C M¨vmwUi †gvU MwZkw³ wbY©q Ki|
N) (1) DÏxc‡Ki ‘B’ I ‘C’ M¨vm `ywUi †jLwPÎ A Gi Abyi~c bv nIqvi KviY we‡kølY Ki|
(2) DÏxc‡Ki ‘B’ I ‘C’ M¨vm `ywUi †jLwPÎ A Gi Abyi~c Ki‡Z wK wK kZ© cÖ‡qvM Ki‡Z nq
we‡kølb Ki|
 DÏxcK - 12| DÏxcKwU co Ges wb‡Pi cÖ‡kœi DËi `vI|
20 cm
HCl(gas) NH 3 (gas)
KvPbj
(K) µvwšÍ ZvcgvÎv Kx?/ BOD Kx ?
(L) †Kvb cvwbi BOD 5 mg/L Øviv Kx †evSvq?/ cvwbi COD 10 mgL-1 ej‡Z wK eyS?
(M) DÏxc‡Ki M¨vm `ywU KZ `~i‡Z¡ wgwjZ n‡e? MvwYwZKfv‡e we‡kølY Ki|
(N) DÏxc‡Ki †hŠMØq‡K †Kvb gZev‡`i Av‡jv‡K GwmW I ÿvi wnmv‡e wPwüZ Kiv hvq ? we‡kølY Ki|
DÏxcK - 13 :
D
+H2
CnH2n-2 C4H6 CH
Pd-BaSO4 4 8
A B
GLv‡b n = 4 E ( AcÖwZmg)
K) wd«-‡iwWK¨vj Kx?
L) †cÖv‡cb‡K B‡_‡bi mg‡MvÎK ejv nq †Kb?
(M) E mgvYyi mv‡_ HBr Gi wewµqvi †KŠkj Av‡jvPbv Ki|
(N) Dchyy³ wewµqvmn DÏxc‡Ki A Ges B †hŠ‡Mi g‡a¨ cv_©K¨ eY©bv K‡iv|
DÏxcK - 14 :

K) KvBivj Kve©b Kx?

L) Kv©wbj g~jK wKfv‡e wgw_wjb g~j‡K cwibZ nq?
(M) A †hŠMwU ‰Zixi †KŠkj †`LvI|
(N) †hŠM A Ges B Gi †÷wiI mgvYyZvi wfbœZv we‡kølY Ki|
DÏxcK - 15 :
A. 90%
HBr
CH3 – CH2 – CH = CH2
B. 10%

K) wbDwK¬IdvBj wK?/ B‡jK‡UªvdvBj wK?

L) B_vBb A¤øagx© e¨vL¨v K‡iv / j¨vKwUK GwmW GKwU Av‡jvK mwµq †hŠM †Kb? |
(M) DÏxc‡Ki A †_‡K GKwU R¨vwgwZK mgvby mgxKi‡Yi mvnv‡h¨ cÖ¯ÍyZ K‡i †`LvI| 3
(N) A Ges B Gi Drcv`‡bi cwigvY wfbœZvi KviY we‡kølY Ki| 4